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解题方法
1 . 已知椭圆
过点
.
(1)求椭圆
的方程;
(2)若过点
的直线与椭圆
交于点
,直线
分别交直线
于点
.求证:线段
的中点为定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae13b2a96f91ab64fb4948de2b0ae10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eb02f38d1b612e33fd5d5f4823f0552.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2887d247b961e63d83084f683e94abca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad57e3727b7bbd795b05332fbf9649e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a53c434821195a33b969ecf891d94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef79861421b414b455a090a3ef04fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab4cf09670861e61d67cbe70bb149a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e430f13f42cf2d44aa0f0e20b959684f.png)
您最近一年使用:0次
2022-01-16更新
|
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3卷引用:重庆市第十一中学2021-2022学年高二下学期质量抽测(二)数学试题
名校
2 . 已知椭圆
,焦点
,
.过
作倾斜角为
的直线L交上半椭圆于点A,以
(O为坐标原点)为邻边作平行四边形
,点B恰好也在椭圆上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13bc696ff89b2b107bb45029ddf9f114.png)
![](https://img.xkw.com/dksih/QBM/2020/7/19/2509488623517696/2511923892854784/STEM/5cdf9ed22cfd493aa4c142defa6c3d1e.png?resizew=227)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813f9a2814013e2407b5b1c216159359.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fd15503ee692f8286b0312f7c6f0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813f9a2814013e2407b5b1c216159359.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f08b024205664540371fdc390053f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf9ce1d8965e6b9f1d59bf1f41ce793.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13bc696ff89b2b107bb45029ddf9f114.png)
![](https://img.xkw.com/dksih/QBM/2020/7/19/2509488623517696/2511923892854784/STEM/5cdf9ed22cfd493aa4c142defa6c3d1e.png?resizew=227)
A.![]() | B.![]() | C.![]() | D.12 |
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2020-07-23更新
|
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6卷引用:重庆市第十一中学校2021届高三上学期9月月考数学试题
名校
3 . 已知点
,点A,B分别为椭圆
的左右顶点,直线BP交C于点Q,
是等腰直角三角形,且
.
(1)求C的方程;
(2)设过点P的动直线l与C相交于M,N两点,O为坐标原点.当
为直角时,求直线l的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c10f14aae6fb21e047ecb39cdf40c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383cd17d3bb07af377f0dbbb2366b563.png)
(1)求C的方程;
(2)设过点P的动直线l与C相交于M,N两点,O为坐标原点.当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27935c1ef4df2d52ac697678a3c8f39d.png)
您最近一年使用:0次
2020-02-15更新
|
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2卷引用:重庆市第十一中学校2019届高三下学期5月月考(理科)数学试题